Description:

Plum Coupling are well balanced and suitable for high speed applications (up to 30,000 rpm), but cannot handle large misalignments, especially axial misalignments. Larger eccentricities and deflection angles create greater bearing loads than other servo couplings. Another concern of value is the failure of the plum blossom coupling. Once the plum blossom elastic spacer is damaged or fails, the torque transmission will not be interrupted, and at the same time the metal claws of the two bushings are engaged together to continue to transmit torque, which is likely to cause problems in the system. It is a major advantage of this coupling to choose the appropriate plum blossom spacer material according to the actual application. We can provide plum blossom spacers of various elastic materials with different hardness and temperature tolerance, allowing customers to choose suitable materials to meet practical applications. performance standards.

Precision machine tools for processing:

Whether the plum blossom coupling needs to be processed by machine tools depends mainly on the working conditions. If the speed of the coupling is too high, it is necessary to use a machine tool to process the coupling. The main reason is that the elastic body of the coupling will be heated due to too high a rotating speed. Since the size of the plum blossom jaws of the coupling processed by the machine tool is evenly divided, the elastic body is heated evenly, so the service life of the coupling will increase. If it is a coupling processed by an ordinary machine tool, the plum blossom claws of the coupling will be unevenly divided, which will cause uneven heating of the elastic body, thereby reducing the service life of the coupling.

In SUMMARY:

There are two main types of plum couplings, one is the traditional straight claw type, and the other is the curved (concave) claw type zero clearance coupling. The traditional straight claw coupling is not suitable for high precision servo drive applications. Zero clearance claw type coupling is evolved on the basis of straight claw type, but the difference is that its design can be suitable for servo system applications, often used to connect servo motors, stepper motors and ball screw. The curved surface is to reduce the deformation of the spacer and limit the influence of centripetal force on it at high speed. The zero clearance clave-type coupling consists of two metal bushings (usually made of aluminum alloy, stainless steel is also available) combined with a plum elastic spacer. The spring spacer has multiple blade branches, like the slider coupling, it is also squeezed to make the spring spacer fit the shaft sleeve on both sides, and thus its zero clearance performance. Unlike the slide coupling, the plum coupling is driven by compression and the slide coupling is driven by shear. In the use of zero gap claw coupling, the user should pay attention to not exceed the manufacturer given the large bearing capacity of the elastic components (under the premise of zero gap), otherwise the elastic spacer body will be flattened deformation to lose elasticity, the pre-load disappears, resulting in the loss of zero gap performance, but also may be found after serious problems.